linux-kernel - Re: [PATCH -fixes v2] riscv: uaccess: Return the number of bytes effectively not copied

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Date:   Thu, 17 Aug 2023 15:20:24 +0000
From:   patchwork-bot+linux-riscv@...nel.org
To:     Alexandre Ghiti <alexghiti@...osinc.com>
Cc:     linux-riscv@...ts.infradead.org, paul.walmsley@...ive.com,
        palmer@...belt.com, aou@...s.berkeley.edu, alankao@...estech.com,
        linux-kernel@...r.kernel.org, tsu.yubo@...il.com,
        aurelien@...el32.net, bjorn@...osinc.com
Subject: Re: [PATCH -fixes v2] riscv: uaccess: Return the number of bytes
 effectively not copied

Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer@...osinc.com>:

On Fri, 11 Aug 2023 17:06:04 +0200 you wrote:
> It was reported that the riscv kernel hangs while executing the test
> in [1].
> 
> Indeed, the test hangs when trying to write a buffer to a file. The
> problem is that the riscv implementation of raw_copy_from_user() does not
> return the correct number of bytes not written when an exception happens
> and is fixed up, instead it always returns the initial size to copy,
> even if some bytes were actually copied.
> 
> [...]

Here is the summary with links:
  - [-fixes,v2] riscv: uaccess: Return the number of bytes effectively not copied
    https://git.kernel.org/riscv/c/4b05b993900d

You are awesome, thank you!
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